| /* |
| * Copyright (C) 2014 Apple Inc. All Rights Reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #include "TypeLocation.h" |
| #include <wtf/FastMalloc.h> |
| #include <wtf/HashMethod.h> |
| #include <wtf/StdUnorderedMap.h> |
| |
| namespace JSC { |
| |
| class VM; |
| |
| class TypeLocationCache { |
| public: |
| struct LocationKey { |
| LocationKey() {} |
| bool operator==(const LocationKey& other) const |
| { |
| return m_globalVariableID == other.m_globalVariableID |
| && m_sourceID == other.m_sourceID |
| && m_start == other.m_start |
| && m_end == other.m_end; |
| } |
| |
| unsigned hash() const |
| { |
| return m_globalVariableID + m_sourceID + m_start + m_end; |
| } |
| |
| GlobalVariableID m_globalVariableID; |
| intptr_t m_sourceID; |
| unsigned m_start; |
| unsigned m_end; |
| }; |
| |
| std::pair<TypeLocation*, bool> getTypeLocation(GlobalVariableID, intptr_t, unsigned start, unsigned end, RefPtr<TypeSet>&&, VM*); |
| private: |
| using LocationMap = StdUnorderedMap<LocationKey, TypeLocation*, HashMethod<LocationKey>>; |
| LocationMap m_locationMap; |
| }; |
| |
| } // namespace JSC |